Improvement in oed-cans



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WILLiAM P OLYBLANK,

vor oLEVELAND,oH1o.

Leners Para No. 88,908, dated April 18, 1869.

IMPROVEMENT IN Oni-CANS.

The Schedule referred to in these Letters Patent making part o! the alma.

To all whom it 'ma/y concern.-

Beit known that I, WILLIAM POLYBLANK, ofOleveland, in the county of Cuyahoga, and State of" Ohio, have invented certain new and useful Improvements in Oil-Gans; and I do hereby declare that the following is a full and complete description of the same, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is a perspective view of the can.

Figures 2, 3, 4, and 5 are detached sections, to which reference will be had.

Like letters of reference refer to like parts in the diierent views presented.

This invention has for its object, the construction of an oil-can in such way, that the said can shall combine strength and safetywith convenience of shape for storage and transportation; also, providing the same with the means of discharging its contents wholly, and with facility;

In fig. 1, A represents the can, which, in shape, is an oblong square. The shape, however, may be varied, as well as'the size, as circumstances may demand.

One of the characteristics of this can, is the peculiar manner of connecting the top and bottom, A and B, to the sides, or body C, and which is as follows:

The edge of the top and bottom is struck up, and formed into a hook, or U-shaped lap, D, fig. 3, whereas the top and bottom-edge of the sides are slightly bent outwardly, forming a ange, a., which is made to correspond in its angle to that of the lap D, and into which it is tted, as shown at a', which represents a vertical section of the can, showing one edge of the top and side locked into each other.

` The lap, or hook-part of the joint, is then compressed together, thereby tightly embracing the ange-like edge of the side. This being done, the joint is then further secured by soldering, either by the use of the ordinary soldering-iron, or by the immersion of the same in a bath of melted solder. In this way, a strong and durable joint is cbtained,which will e'ectually prevent the sides from being pressed in by any ordinary force. By means -of the shoulder b, formed around the centre edge of the top, and against which the edges ofthe sides rest, and are thereby outwardly braced, the joint is relieved from strain, in consequence of any externalpressure upon the sides 'ofthe can.

A further improvement consists in providing the can with an outlet, and means for ventilation.

In the hole made in one corner, or elsewhere in the top of thecau, is tted a thimble, D', g.-2 for the admissionl and retention of the cork. Around the upper end of the thimble, are air-holes c, the practical use of which will presently'be shown.

It will be obvious, that by providing the can with the thimble,' a cork, or bung can be fitted tightly therein, it being compressed by the slight taper given to the thimble, and will'therefore be held as tightly as a cork in an ordinary bottle. v

The bung is inserted in the hole, so that it shall be even with the top, over which is then soldered a plateof tin, thereby making the opening permanently tight, for transportation.

It is well known, that on drawing uids om a full bottle or cask, in consequence of .the external pressure of the air upon the fluid, it will not flow out in a full, unbroken stream, the air passing into the vessel throu' h the same outlet from which the contentsy are flowing, produces athrobbing, or pulsatory flow, which causes the fluid to run down upon the outside of the vessel, iu a slow and dilatory manner, and if the vessel is full, it will cease to How until ventilated.

In. order to facilitate the owing out of the contents of the can, it is ventilated by means of the air-holes c, above referred to, said yholes allowing the air to enter the can immediately at the opening, and therefore is not compelled to traverse the length of the thimble to reach the inside.

By this means of supplying air to the can, the throbhing, or pulsatory owing of the oil is obviated; but, instead, will run out with a full, steady, and unbroken stream.

Fig. 4 represents a supplementary thimble, havingA in its side a deep slot, e. The purpose of said thimble is to provide a projecting lip, or nozzle, for the outlet of the can, into which it is inserted, as shown in fig. 1, in which figure, E represents the thimble. By the use of this thimble, the oil is carried out further from the end of the can, thereby preventing its trickling down under the opening. The slot e allows the air to pass into the can throngh'the air-holes, with which it is brought into open relation.

Fig. 5 represents a supplementary thimble, provided with a long curving spout, or discharging-tube, which carries the oil still further from the can, and which is foundvery convenient for the purpose of filling vessels, having a small mouth..

It will be obvious that, for ordinary purposes, the supplementary thirnble and discharging-tube F will not be needed, as the contents of the can may be drawn o" without them with facility, and without waste.

What I claim as my improvement, and desire to secure by Letters Patent, is-

1. The perforated bung-tube, or thimble D', in combination with the can A, substantially as and for the purpose described.

2. The combination of the discharging-tube F and supplementary thimble E,'in the manner as and for the purpose set forth.

WM. VPOLYBLANK. Witnesses:

J. H. BURnmGE, E. E. WAITE. 

